Superiority:1. Made from precision steel for ultra strength and durability.2. Reduction gear ratio of 4:1 allows the rollers to make one complete turn for every four turns of the rolling mill handle. This relieves the amount of force needed to operate the rolling mill.3. With forged handle, simple and convenient to use. Easily mounts the rolling mill to your workbench using the mounting holes. Application:The combination rolling mills are ideal for jewelers and crafts-people. Rolling Mills are designed for cold rolling metal to produce thinner gauges of sheet metal and wire, transferring textures to your metal and to make the thickness uniform. Feature:Combination rolling mill 130 mm5 MM max openingSteel forged handleSolid hobbed steel gearsPrecision high strength housingPrecision engineered for lifetime of useProduct: Combination rolling millGear ratio: 4:1Roller width: 130 mmRoller diameter: 65 mmMaximum opening: 0-5 mmFlat area ( /- 0.01mm): 57 mmSquare wire( /- 0.01mm): 1.0, 2.0, 3.0, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0mmRing shank - half round ellipse(mm): 2.5x1, 3x1.25, 4x1.5mmProduce metal foil as thin as .001 inchPackage size: 34x34x20 cm (13.39x13.39x7.87 inch)Gross weight: 22.5 kg Package Content:1 x Combination Rolling Mill1 x HandleOur products are shipped from the United States, we will serve you 24 hours, if you have any questions, please contact us in time.